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Finding the Fourth Proportional to 62,920.13, 86,831.06 and 34,625.88

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Solution

The fourth proportional to 62,920.13, 86,831.06 and 34,625.88 is: 47,784.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,920.13 : 86,831.06 = 34,625.88 : x
  2. Step 2: Convert to fraction form
    62,920.13/86,831.06 = 34,625.88/x
  3. Step 3: Cross multiply
    62,920.13x = 86,831.06 × 34,625.88
  4. Step 4: Simplify right side
    62,920.13x = 3,006,601,690.70
  5. Step 5: Solve for x
    x = 3,006,601,690.70/62,920.13
  6. Step 6: Final answer
    x = 47,784.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.